Microendoscopic partial resection of the sacral ala to relieve extraforaminal entrapment of the L-5 spinal nerve at the lumbosacral tunnel: Technical note

Morio Matsumoto, Kazuhiro Chiba, Ken Ishii, Kota Watanabe, Masaya Nakamura, Yoshiaki Toyama

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The authors report the cases of three patients with L-5 radiculopathy caused by extraforaminal entrapment of the L-5 spinal nerve at the lumbosacral tunnel; this structure comprises the lumbosacral ligament, the sacral ala, and the L-5 and S-1 vertebral bodies. All three patients suffered severe leg pain and neurological deficits compatible with L-5 radiculopathy. Decompressive surgery involved the microendoscopic partial resection of the sacral ala along the L-5 spinal nerve. All patients experienced immediate pain relief postoperatively. Microendoscopic partial resection of the sacral ala is an effective and minimally invasive surgical option for patients with extraforaminal entrapment of the L-5 spinal nerve.

Original languageEnglish
Pages (from-to)342-346
Number of pages5
JournalJournal of Neurosurgery: Spine
Volume4
Issue number4
DOIs
Publication statusPublished - 2006 Apr 1

Keywords

  • Decompression
  • Extraforaminal stenosis
  • Lumbar spine
  • Lumbosacral tunnel
  • Microendoscopy
  • Radiculopathy
  • Sacral ala

ASJC Scopus subject areas

  • Surgery
  • Neurology
  • Clinical Neurology

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